The Air Tight ATM-300R wowed me with countless hours of listening pleasure. It consistently brought to life the full sonic promise of the 300B, and fully justified its reference appellation.

Absolute Sound

  • Abolishing Vanity and Extracting Musicality

  • Even now many audiophiles are still longing for 300B direct-heated triode valve. We too, were captivated by the charm of this valve. Our approach is to pull out the full potential of 300B valve’s musical soundstage without any additive coloration. As a result, we could achieve a goal of timbral purity and tonal realism by means of 300B’s idiosyncrasy.

Power output: 9Wpc (<10% THD)
Frequency response: 30Hz–40kHz, –1dB/1W
Total harmonic distortion: <1% (1kHz/1W/8 ohm)
Input sensitivity: 290mV
Damping factor: 7 (1kHz/1W/8 ohm)
Dimensions: 430 x 245 x 275mm
Weight: 54 lbs. (24.5 kg)

The Air Tight ATM-300R wowed me with countless hours of listening pleasure. It consistently brought to life the full sonic promise of the 300B, and fully justified its reference appellation.


Good synergies with Air Tight's ATM-300R


Or check out...

Not available for online purchase. But come in and check it out!